Maybe someone can shed light on this problem. I'm trying to install JBoss Dev Studio on my Macbook Pro running OS X 10.5.4 but can't get most plugin functionality (Seam, etc.) to load into Eclipse on startup. I'm running the jbdevstudio-macosx-carbon-1.1.0.GA.tar installer package downloaded from Redhat. The active JVM on my machine is: java version "1.5.0_13" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05-237) Java HotSpot(TM) Client VM (build 1.5.0_13-119, mixed mode, sharing) I'm fairly sure that's a 32 bit JVM but could be wrong. Here's the stack trace: java.lang.NullPointerException at org.eclipse.ui.internal.intro.impl.model.IntroGroup.loadDynamicNodes(IntroGroup.java:100) at org.eclipse.ui.internal.intro.impl.model.IntroGroup.loadChildren(IntroGroup.java:90) at org.eclipse.ui.internal.intro.impl.model.AbstractIntroContainer.getChildren(AbstractIntroContainer.java:78) at org.eclipse.ui.internal.intro.impl.model.AbstractIntroContainer.getChildrenOfType(AbstractIntroContainer.java:133) at org.eclipse.ui.internal.intro.impl.swt.RootPageForm.createGroupContent(RootPageForm.java:244) at org.eclipse.ui.internal.intro.impl.swt.RootPageForm.createGroupContent(RootPageForm.java:269) at org.eclipse.ui.internal.intro.impl.swt.RootPageForm.createRootPageContent(RootPageForm.java:231) at org.eclipse.ui.internal.intro.impl.swt.RootPageForm.createPartControl(RootPageForm.java:193) at org.eclipse.ui.internal.intro.impl.presentations.FormIntroPartImplementation.createMainPageBook(FormIntroPartImplementation.java:169) at org.eclipse.ui.internal.intro.impl.presentations.FormIntroPartImplementation.dynamicCreatePartControl(FormIntroPartImplementation.java:138) at org.eclipse.ui.internal.intro.impl.presentations.FormIntroPartImplementation.createPartControl(FormIntroPartImplementation.java:100) at org.eclipse.ui.internal.intro.impl.model.IntroPartPresentation.createPartControl(IntroPartPresentation.java:267) at org.eclipse.ui.intro.config.CustomizableIntroPart.createPartControl(CustomizableIntroPart.java:193) at org.eclipse.ui.internal.ViewIntroAdapterPart.createPartControl(ViewIntroAdapterPart.java:98) at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:370) at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:227) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592) at org.eclipse.ui.internal.Perspective.showView(Perspective.java:2086) at org.eclipse.ui.internal.WorkbenchPage.busyShowView(WorkbenchPage.java:1027) at org.eclipse.ui.internal.WorkbenchPage.access$19(WorkbenchPage.java:1008) at org.eclipse.ui.internal.WorkbenchPage$19.run(WorkbenchPage.java:3684) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3681) at org.eclipse.ui.internal.WorkbenchPage.showView(WorkbenchPage.java:3657) at org.eclipse.ui.internal.WorkbenchIntroManager.createIntro(WorkbenchIntroManager.java:173) at org.eclipse.ui.internal.WorkbenchIntroManager.showIntro(WorkbenchIntroManager.java:120) at org.eclipse.ui.application.WorkbenchWindowAdvisor.openIntro(WorkbenchWindowAdvisor.java:173) at org.eclipse.ui.internal.ide.application.IDEWorkbenchWindowAdvisor.openIntro(IDEWorkbenchWindowAdvisor.java:456) at org.eclipse.ui.internal.WorkbenchWindow.open(WorkbenchWindow.java:753) at org.eclipse.ui.internal.Workbench$21.runWithException(Workbench.java:1037) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3214) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2954) at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:801) at org.eclipse.ui.internal.Workbench$25.runWithException(Workbench.java:1342) at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3214) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2954) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2309) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) Any thoughts? thx, geraldmc